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cookies.append(cookie)
return resp_headers, resp_body, cookies
def bake_cookies(cookies):
# return b''.join([b'Cookie: %s\r\n' % c for c in cookies])
return b'Cookie: %s\r\n' % b'; '.join(cookies)
def send_standalone_post(
socket_factory,
post_factory,
cookies,
data,
counter_thread,
mode
):
my_headers = b''.join((
b"User-Agent: curl/7.58.0\r\n",
# probably not necessary
b"Accept: */*\r\n",
bake_cookies(cookies),
b"X-ClientSide: 1\r\n",
header_mode(mode),
# close connection; send data in a new TCP stream
b"Connection: close\r\n",
# keep the connection alive. saves on latency
# "Connection: keep-alive\r\n",
))
# send data as a brand new POST request
req = post_factory.build_request(
# set a continuation header
my_headers=my_headers,
# no need for a body: we're initialising the
# server-side listener
req_body=to_chunk(data),
# this terminates the POST with a 0 chunk, so
# that the aspx page can read it and send it
# over to the server-side socket
is_last=True)
log.debug("Sending stand-alone POST\n---\n%s\n---", req)
# see above
# try:
# log.debug("Sending stand-alone POST\n---\n{}\n---".format(
# req.decode()))
# except UnicodeDecodeError:
# # ssh will make things iffy here. it's binary data, skip anyway...
# pass
# # for keep-alive:
# with websock_mutex:
# # _chunked_data = to_chunk(data)
# # websock.sendall(_chunked_data)
# websock.sendall(req)
# # not needed actually
# # split_headers(websock.recv(BUFFER_SIZE))
# for new TCP streams:
websock2 = socket_factory.build_socket()
websock2.sendall(req)
# IMPORTANT
# We *need* to remove the HTTP headers
# from the response from this first, delayed message
# otherwise it's going to interfere with things like ssh
if counter_thread.first_message:
# the message will be delayed by 120s
# IIS bug probably.
# TODO print only if talking to an ASPX endpoint
print("[!] The first message will be delayed "
"by 120s. ")
print("[!] Why? Who knows. Things will work fine "
"afterwards. Please wait...")
counter_thread.first_message = False
counter_thread.start()
# used only to check what's going on; no need to
# check the return values. Will raise an exception
# it's non-200 or not a HTTP response
resp_headers, resp_body, _cookie = split_headers(
websock2.recv(BUFFER_SIZE))
# removed when adding support for multiple cookies
# if _cookie != b"" and _cookie != cookie:
# log.warn(
# "Cookie value has changed. Something "
# "wrong with the remote session storage?.")
# cookie = _cookie
# TODO catch and finally close?
websock2.shutdown(socket.SHUT_RDWR)
websock2.close()
log.debug("Closed socket")
if counter_thread.is_alive():
# stop timer thread
counter_thread.quit = True
return resp_headers, resp_body, cookies
def to_chunk(what):
# return format(len(what), 'X') + "\r\n" + what + "\r\n"